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Precisely 1.00 x 10-3 mol of CaCl2, 0.100 mol of NaOH and 0.100 mol of Na3T were mixed as well as then diluted to 1.00 L. Explain what was the concentration of Ca(2+) in the resulting mixture?
a hydrogen atom initially in the n7 quantum state emits a photon having a wavelength of 2.16495e-6 m. what is the
When the metal was placed in a constant-pressure calorimeter containing 30.0g of water, the temperature of the water rose from 24.80 degrees C to 29.75 degrees C. Calculate the specific heat of the metal.
Usually as a solution cools, the solvent will crystallize out of the solution as the pure solvent. What effect will this have on concentration of the solute as solvent is solidifying.
If the radius of a benzene ring is 120 pm, what is the energy of the lowest energy transition (in units of nm) for benzene
An enzyme-catalyzed reaction was carried out in a 0.2M "Tris" buffer, pH 7.8. As a result of the reaction, 0.03 mole/liter of H+ was produced. (pKa of Tris =8.1). What was the ratio of Tris+
how to determine the carbondioxide content of the air in your lungs as a function of time after inhalation by a
Find the pH and volume (mL) of 0.0372 M NaOH needed to reach the equivalence point(s) in titrations of 20.0 mL of 0.0892 M H2SO3 (two equivalence points)
Explain the different mechanisms by which each of the inhibitors act to reduce the activity of the catalytic enzyme.
Element symbols and Chemical formulas - What is the total number of atoms found in each of the following compounds? What is the total number of elements found in each?
A student carefully diluted 50.0mL of 6 M HCI solution in 950.0 mL of distilled water. calculate the molarity of the diluted acid solution. Explain why this diluted HCI solution cannot be used as a standard solution of acid.
the volume of 0.009450 M Zn2+ needed to titrate the excess reagent after addition of 50.00 mL of 0.008640 M EDTA to a 25.00-mL aliquot of this solution.
Iodobenzene(C6H5I, bp 188C) steam distills at 98.2. How many molecules of water are required to carry over 1 molecule of iodobenzene. How many grams os water per gram of iodobenzene
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